EP3640779A4 - Schaltung, berührungschip und elektronische vorrichtung zur kapazitätserkennung - Google Patents

Schaltung, berührungschip und elektronische vorrichtung zur kapazitätserkennung Download PDF

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Publication number
EP3640779A4
EP3640779A4 EP18914933.9A EP18914933A EP3640779A4 EP 3640779 A4 EP3640779 A4 EP 3640779A4 EP 18914933 A EP18914933 A EP 18914933A EP 3640779 A4 EP3640779 A4 EP 3640779A4
Authority
EP
European Patent Office
Prior art keywords
electronic device
detection circuit
capacity detection
touch chip
touch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18914933.9A
Other languages
English (en)
French (fr)
Other versions
EP3640779B1 (de
EP3640779A1 (de
Inventor
Hong Jiang
Zhi Tang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Goodix Technology Co Ltd
Original Assignee
Shenzhen Goodix Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Goodix Technology Co Ltd filed Critical Shenzhen Goodix Technology Co Ltd
Publication of EP3640779A1 publication Critical patent/EP3640779A1/de
Publication of EP3640779A4 publication Critical patent/EP3640779A4/de
Application granted granted Critical
Publication of EP3640779B1 publication Critical patent/EP3640779B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
    • G01R27/2605—Measuring capacitance
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Position Input By Displaying (AREA)
EP18914933.9A 2018-09-07 2018-09-07 Schaltung, berührungschip und elektronische vorrichtung zur kapazitätserkennung Active EP3640779B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/104618 WO2020047844A1 (zh) 2018-09-07 2018-09-07 电容检测电路、触控芯片及电子设备

Publications (3)

Publication Number Publication Date
EP3640779A1 EP3640779A1 (de) 2020-04-22
EP3640779A4 true EP3640779A4 (de) 2020-06-24
EP3640779B1 EP3640779B1 (de) 2022-04-27

Family

ID=69143369

Family Applications (2)

Application Number Title Priority Date Filing Date
EP18914933.9A Active EP3640779B1 (de) 2018-09-07 2018-09-07 Schaltung, berührungschip und elektronische vorrichtung zur kapazitätserkennung
EP18914936.2A Active EP3640780B1 (de) 2018-09-07 2018-11-28 Schaltung, berührungschip und elektronische vorrichtung zur kapazitätserkennung

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP18914936.2A Active EP3640780B1 (de) 2018-09-07 2018-11-28 Schaltung, berührungschip und elektronische vorrichtung zur kapazitätserkennung

Country Status (4)

Country Link
US (2) US10949032B2 (de)
EP (2) EP3640779B1 (de)
CN (2) CN111164557B (de)
WO (2) WO2020047844A1 (de)

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CN112602046B (zh) 2019-08-01 2022-06-07 深圳市汇顶科技股份有限公司 电容检测电路、触控芯片及电子设备
KR102910278B1 (ko) * 2019-08-09 2026-01-09 삼성디스플레이 주식회사 터치 구동 회로 및 이를 포함하는 표시 장치
CN111309187B (zh) * 2020-03-17 2022-02-22 北京集创北方科技股份有限公司 检测电路、触控面板及电子设备
KR102375320B1 (ko) 2020-04-24 2022-03-16 관악아날로그 주식회사 용량성 센서를 위한 읽기 회로
CN113541670B (zh) * 2020-07-21 2024-07-09 腾讯科技（深圳）有限公司 电容检测电路、方法及电子设备
CN111880690B (zh) * 2020-08-06 2024-12-06 深圳市汇顶科技股份有限公司 噪声检测电路、自容检测方法、触控芯片及电子设备
WO2022027503A1 (zh) * 2020-08-06 2022-02-10 深圳市汇顶科技股份有限公司 噪声检测电路、自容检测方法、触控芯片及电子设备
CN115997135A (zh) * 2020-09-03 2023-04-21 微芯片技术股份有限公司 使用能量脉冲的电压采样以及相关系统、方法和设备
CN114097180B (zh) * 2020-12-28 2023-07-28 深圳市汇顶科技股份有限公司 一种nfc设备
CN112415604B (zh) * 2021-01-22 2021-06-18 深圳市汇顶科技股份有限公司 检测电路、芯片及相关电子装置
KR102691711B1 (ko) 2021-06-03 2024-08-02 서울대학교산학협력단 용량성 센서를 위한 읽기 회로
CN114487784A (zh) * 2022-02-17 2022-05-13 深圳市汇顶科技股份有限公司 电容检测电路、触控芯片及电子设备
CN119644124B (zh) * 2025-02-19 2025-07-01 深圳市赛元微电子股份有限公司 电容触控感应电路的测试方法和测试装置

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US20190302928A1 (en) * 2018-03-30 2019-10-03 Shenzhen Weitongbo Technology Co., Ltd. Capacitance detection circuit, touch detection device and terminal device

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CN108064344A (zh) * 2017-11-20 2018-05-22 深圳市汇顶科技股份有限公司 差分电路、电容检测电路、触摸检测装置和终端设备
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Also Published As

Publication number Publication date
WO2020048023A1 (zh) 2020-03-12
US20200081567A1 (en) 2020-03-12
EP3640779B1 (de) 2022-04-27
CN111164558A (zh) 2020-05-15
CN111164558B (zh) 2022-06-07
CN111164557B (zh) 2023-10-20
CN111164557A (zh) 2020-05-15
US20200110117A1 (en) 2020-04-09
EP3640780A1 (de) 2020-04-22
US10949032B2 (en) 2021-03-16
EP3640780B1 (de) 2021-10-27
EP3640780A4 (de) 2020-06-03
EP3640779A1 (de) 2020-04-22
WO2020047844A1 (zh) 2020-03-12
US10990230B2 (en) 2021-04-27

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